کاربرد لاجیت ترتیبی تعمیم یافته در تعیین عوامل اجتماعی- اقتصادی مؤثر بر آلودگی آب‌های زیرزمینی (مطالعه موردی: آبشویی نیترات در کشت برنج)

اقتصاد و توسعه کشاورزی

مقاله 2، دوره 32، شماره 1 - شماره پیاپی 39، فروردین 1397، صفحه 17-29   

نوع مقاله: مقالات پژوهشی

شناسه دیجیتال (DOI): 10.22067/jead2.v32i1.63261

نویسندگان

حمید امیرنژاد^* ؛ احمدرضا شاهپوری؛ مهسا تسلیمی

دانشگاه علوم کشاورزی و منابع طبیعی ساری

چکیده

استفاده غیربهینه و بیش از حد کودهای حاوی نیترات باعث آلودگی آب‌های سطحی و زیرسطحی شده و در چرخه حیاتی انسانی و زیست محیطی اثر منفی دارد. هدف این مطالعه، بررسی عوامل مؤثر بر ورود نیترات به آب‌های زیرزمینی در کشت برنج در شهرستان ساری است. بدین جهت از 106 کشاورز شالیکار شهرستان ساری در سال 1394 مصاحبه به عمل آمد و بعد از جمع‌آوری و استخراج اطلاعات، از روش لاجیت ترتیبی تعمیم یافته با احتمالات متناسب جزئی برای بررسی عوامل موثر بر ورود نیترات به آب‌های زیرزمینی استفاده شد. نتایج نشان داد که متغیرهای سطح درآمد، استفاده از کود حیوانی، نوع مالکیت زمین، سطح زیر کشت برنج، پرداخت آب‌بها و آشنایی با کشت ارگانیک بر سطوح سه‌گانه متغیر وابسته (میزان ورود نیترات به آب زیرزمینی) از نظر آماری اثرات معنی‌دار متفاوتی دارند. در پایان پیشنهادات کاربردی نظیر تغییر در نظام قیمت‌گذاری آب و کود، ترویج و تبلیغ استفاده از کودهای ارگانیک و کشت ارگانیک برنج پیشنهاد شد.

کلیدواژه‌ها

آلودگی آب؛ احتمالات متناسب جزئی؛ روش لاجیت ترتیبی تعمیم یافته؛ کود شیمیایی؛ مازندران؛ منابع آب

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